diff --git a/.gitignore b/.gitignore
index 67fc06f9..797ea922 100644
--- a/.gitignore
+++ b/.gitignore
@@ -48,7 +48,3 @@ docs/
 SCHEMA_NOTES.md
 
 repomix-output.xml
-# >>> specgit: local delivery assets (managed by specgit init) >>>
-/.specgit.yaml
-/spec_git/
-# <<< specgit: local delivery assets (managed by specgit init) <<<
diff --git a/.opencode/hooks.json b/.opencode/hooks.json
deleted file mode 100644
index 67209385..00000000
--- a/.opencode/hooks.json
+++ /dev/null
@@ -1,14 +0,0 @@
-{
-  "PreToolUse": [
-    {
-      "matcher": "Bash|Edit|Write",
-      "hooks": [
-        {
-          "type": "command",
-          "command": ".opencode/hooks/specgit-merge-guard.sh",
-          "timeout": 600
-        }
-      ]
-    }
-  ]
-}
diff --git a/.opencode/hooks/specgit-merge-guard.sh b/.opencode/hooks/specgit-merge-guard.sh
deleted file mode 100755
index 01981b80..00000000
--- a/.opencode/hooks/specgit-merge-guard.sh
+++ /dev/null
@@ -1,175 +0,0 @@
-#!/bin/sh
-# SpecGit guard (managed by specgit init): start gate + merge guard. Exit 2 = block with reason.
-GUARD_DIR=$(cd "$(dirname "$0")" && pwd)
-export GUARD_DIR
-# Hook payloads arrive as the first argument or on stdin; accept both.
-if [ -n "$1" ]; then
-  payload=$1
-else
-  payload=$(cat)
-fi
-tool=$(printf '%s' "$payload" | node -e "let s='';process.stdin.on('data',d=>s+=d).on('end',()=>{try{const j=JSON.parse(s);process.stdout.write((j.tool_name)||'')}catch{process.stdout.write('')}})")
-case "$tool" in
-  edit|write|Edit|Write)
-    # Start gate (#335): mutating files requires the delivery binding on
-    # THIS branch. The record's context.branch is written by specgit and
-    # matched as a fixed WHOLE line — no YAML parsing, no prefix collision
-    # (branch "feat/1-a" must never satisfy a record for "feat/1-a2").
-    branch=$(git branch --show-current 2>/dev/null)
-    if [ -z "$branch" ] || [ ! -f .specgit.yaml ] || ! grep -qFx "  branch: $branch" .specgit.yaml; then
-      echo "specgit: start gate - this branch has no delivery binding. Start the delivery first: specgit issue \"<type>: <title>\", then fill each issue body from the discussion, then edit files." >&2
-      exit 2
-    fi
-    exit 0
-    ;;
-esac
-command=$(printf '%s' "$payload" | node -e "let s='';process.stdin.on('data',d=>s+=d).on('end',()=>{try{const j=JSON.parse(s);process.stdout.write((j.tool_input&&j.tool_input.command)||'')}catch{process.stdout.write('')}})")
-
-case "$command" in
-  gh\ pr\ merge*|glab\ mr\ merge*)
-    exec node -e '
-      const { spawn } = require("child_process");
-      const fs = require("fs");
-      const path = require("path");
-      const ghMsRaw = parseInt(process.env.SPECGIT_GH_TIMEOUT_MS || "", 10);
-      const ghMs = Number.isFinite(ghMsRaw) && ghMsRaw > 0 ? ghMsRaw : 15000;
-      const ghS = Math.max(1, Math.floor(ghMs / 1000));
-      let budgetS = Math.max(60, ghS * 8);
-      const overrideRaw = parseInt(process.env.SPECGIT_GUARD_BUDGET_S || "", 10);
-      if (Number.isFinite(overrideRaw) && overrideRaw > 0) {
-        budgetS = Math.max(overrideRaw, ghS);
-      }
-      // The hook runner kills long hooks; surface the mismatch instead of
-      // being cut off mid-verdict.
-      try {
-        const hooks = JSON.parse(
-          fs.readFileSync(path.join(process.env.GUARD_DIR || ".", "..", "hooks.json"), "utf8")
-        );
-        const runner = (hooks.PreToolUse || [])
-          .flatMap((entry) => entry.hooks || [])
-          .map((hook) => hook.timeout)
-          .find((timeout) => typeof timeout === "number");
-        if (runner !== undefined && runner - 10 < budgetS) {
-          console.error(
-            "specgit: guard budget " + budgetS + "s exceeds the hook runner timeout " +
-              runner + "s in .opencode/hooks.json - raise the runner timeout or lower SPECGIT_GUARD_BUDGET_S."
-          );
-        }
-      } catch {}
-      const cp = require("child_process");
-      const isWin = process.platform === "win32";
-      // Windows: cmd.exe cannot exec an extensionless sh shim, so prefer
-      // git-bash sh when present; only then fall back to shell mode.
-      let child;
-      if (isWin) {
-        const probe = cp.spawnSync("sh", ["-c", "exit 0"]);
-        if (probe.status === 0) {
-          child = spawn("sh", ["-c", "specgit finish --json"], {
-            stdio: ["ignore", "pipe", "pipe"],
-          });
-        }
-      }
-      if (!child) {
-        child = spawn("specgit", ["finish", "--json"], {
-          shell: isWin,
-          stdio: ["ignore", "pipe", "pipe"],
-        });
-      }
-      let out = "";
-      let err = "";
-      let expired = false;
-      child.stdout.on("data", (chunk) => (out += chunk));
-      child.stderr.on("data", (chunk) => (err += chunk));
-      const timer = setTimeout(() => {
-        expired = true;
-        // Bound the wait strictly: descendants may inherit the pipes, so
-        // destroy them and exit now — never lag behind orphaned children.
-        child.stdout.destroy();
-        child.stderr.destroy();
-        child.kill("SIGKILL");
-        console.error(
-          "specgit: merge blocked - guard budget " + budgetS + "s exhausted before a verdict. This says nothing about the delivery; run specgit finish directly for the full verdict."
-        );
-        process.exit(2);
-      }, budgetS * 1000);
-      child.on("error", (error) => {
-        clearTimeout(timer);
-        console.error(
-          "specgit: merge blocked - the verdict could not run (" + error.message + "). Install specgit on PATH, then retry the merge."
-        );
-        process.exit(2);
-      });
-      child.on("close", (code) => {
-        clearTimeout(timer);
-        if (expired) {
-          process.exit(2);
-        }
-        if (code === 0) {
-          process.exit(0);
-        }
-        let envelope = null;
-        try {
-          envelope = JSON.parse(out);
-        } catch {}
-        const verdict = envelope && envelope.verdict;
-        const gates = (envelope && (envelope.gates || (verdict && verdict.gates))) || [];
-        const failures = [];
-        for (const gate of gates) {
-          for (const failure of (gate && gate.failures) || []) failures.push(failure);
-        }
-        const label = (failure, suffix) => {
-          const detail = failure.detail || {};
-          const name = detail.name || failure.code;
-          const state = suffix || detail.status || detail.conclusion || "";
-          return name + (state ? " [" + state + "]" : "");
-        };
-        const pending = failures.filter((f) => f.code === "checks_pending");
-        const failed = failures.filter((f) => f.code === "checks_failed");
-        const other = failures.filter(
-          (f) => f.code !== "checks_pending" && f.code !== "checks_failed"
-        );
-        const lines = [];
-        if (code === 1) {
-          lines.push(
-            "specgit: merge blocked - verdict rejected (exit 1). Fix what the failures name; never weaken spec_git/policy.yaml to pass."
-          );
-        } else {
-          lines.push(
-            "specgit: merge blocked - no verdict possible (evidence incomplete, exit " + code + "). This is not a rejection: fix evidence gathering (network, gh auth), then retry."
-          );
-        }
-        if (pending.length > 0) {
-          lines.push(
-            "  pending (transient - wait, then re-run): " + pending.map((f) => label(f)).join(", ")
-          );
-        }
-        if (failed.length > 0) {
-          lines.push(
-            "  failed (repair required): " +
-              failed
-                .map((f) =>
-                  label(
-                    f,
-                    f.detail && f.detail.conclusion === "action_required"
-                      ? "action_required - run awaits maintainer approval"
-                      : undefined
-                  )
-                )
-                .join(", ")
-          );
-        }
-        if (other.length > 0) {
-          lines.push("  other failures: " + other.map((f) => label(f)).join(", "));
-        }
-        lines.push("Full verdict: specgit finish");
-        console.error(lines.join("\n"));
-        process.exit(2);
-      });
-    '
-    ;;
-  git\ push\ origin\ main*|git\ push\ origin\ +main*|git\ push\ origin\ HEAD:main*)
-    echo "specgit: direct push to main is not the delivery path. Deliveries go: specgit issue -> PR -> CI -> specgit finish (exit 0) -> merge." >&2
-    exit 2
-    ;;
-esac
-exit 0
diff --git a/.prettierignore b/.prettierignore
index b1c9acdd..991dccec 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -1,5 +1,3 @@
-# Generated by SpecGit; formatting is owned by the generator.
-.github/workflows/specgit-accept.yml
+# Preserve formatting boundaries for local settings and mixed guidance.
 .specgit.yaml
 AGENTS.md
-spec_git/policy.yaml
diff --git a/.specgit.yaml b/.specgit.yaml
deleted file mode 100644
index ad2c7d76..00000000
--- a/.specgit.yaml
+++ /dev/null
@@ -1,11 +0,0 @@
-version: 1
-delivery: documentation-cleanup
-context:
-  kind: branch
-  branch: chore/64-documentation-cleanup
-issues:
-  - 64
-issueKinds:
-  - issue: 64
-    kind: kind::chore
-pr: 65
diff --git a/spec_git/policy.yaml b/spec_git/policy.yaml
deleted file mode 100644
index 89a4146f..00000000
--- a/spec_git/policy.yaml
+++ /dev/null
@@ -1,8 +0,0 @@
-version: 1
-required_checks:
-  - Type Check, Build & Audit
-  - opencode-compatibility
-language: zh
-automation:
-  merge: false
-  close_issues: false